<template>
  <div class="app-container">
    <el-card class="box-card">
      <template #header class="clearfix">
        <span class="el-icon-document">待办任务</span>
        <el-tag style="margin-left:10px">发起人:{{ startUser }}</el-tag>
        <el-tag>任务节点:{{ taskName }}</el-tag>
        <el-button style="float: right;" size="small" type="danger" @click="goBack">关闭</el-button>
      </template>
      <el-tabs tab-position="top" v-model="activeName" @tab-click="handleClick">
        <!--表单信息-->
        <el-tab-pane label="表单信息" name="1">
          <el-col :span="16" :offset="4">
            <v-form-render ref="vFormRef" />
            <div style="display: flex;justify-content: center; gap: 10px; margin-top: 20px;">
              <el-button type="primary" @click="handleComplete">审 批</el-button>
              <el-button type="warning" @click="handleReturn">退 回</el-button>
              <el-button type="danger" @click="handleReject">驳 回</el-button>
            </div>
          </el-col>
        </el-tab-pane>

        <!--流程流转记录-->
        <el-tab-pane label="流转记录" name="2">
          <!--flowRecordList-->
          <el-col :span="16" :offset="4">
            <div class="block">
              <el-timeline>
                <el-timeline-item v-for="(item, index) in flowRecordList" :key="index" :icon="setIcon(item.finishTime)"
                  :color="setColor(item.finishTime)">
                  <p style="font-weight: 700">{{ item.taskName }}</p>
                  <el-card :body-style="{ padding: '10px' }">
                    <el-descriptions class="margin-top" :column="1" size="small" border>
                      <el-descriptions-item v-if="item.assigneeName" label-class-name="my-label">
                        <template #label><i class="el-icon-user"></i>办理人</template>
                        {{ item.assigneeName }}
                        <el-tag type="info" size="small">{{ item.deptName }}</el-tag>
                      </el-descriptions-item>
                      <el-descriptions-item v-if="item.candidate" label-class-name="my-label">
                        <template #label><i class="el-icon-user"></i>候选办理</template>
                        {{ item.candidate }}
                      </el-descriptions-item>
                      <el-descriptions-item label-class-name="my-label">
                        <template #label><i class="el-icon-date"></i>接收时间</template>
                        {{ item.createTime }}
                      </el-descriptions-item>
                      <el-descriptions-item v-if="item.finishTime" label-class-name="my-label">
                        <template #label><i class="el-icon-date"></i>处理时间</template>
                        {{ item.finishTime }}
                      </el-descriptions-item>
                      <el-descriptions-item v-if="item.duration" label-class-name="my-label">
                        <template #label><i class="el-icon-time"></i>耗时</template>
                        {{ item.duration }}
                      </el-descriptions-item>
                      <el-descriptions-item v-if="item.comment" label-class-name="my-label">
                        <template #label><i class="el-icon-tickets"></i>处理意见</template>
                        {{ item.comment.comment }}
                      </el-descriptions-item>
                    </el-descriptions>
                  </el-card>
                </el-timeline-item>
              </el-timeline>
            </div>
          </el-col>
        </el-tab-pane>
        <!--流程图-->
        <el-tab-pane label="流程图" name="3">
          <bpmn-viewer :flowData="flowData" :procInsId="taskForm.procInsId" />
        </el-tab-pane>
      </el-tabs>
      <!--审批任务-->
      <el-dialog :title="completeTitle" v-model="completeOpen" width="60%" append-to-body>
        <el-form ref="taskForm" :model="taskForm">
          <el-form-item prop="targetKey">
            <flow-user v-if="checkSendUser" :checkType="checkType" @handleUserSelect="handleUserSelect"></flow-user>
            <flow-role v-if="checkSendRole" @handleRoleSelect="handleRoleSelect"></flow-role>
          </el-form-item>
          <el-form-item label="处理意见" label-width="80px" prop="comment"
            :rules="[{ required: true, message: '请输入处理意见', trigger: 'blur' }]">
            <el-input type="textarea" v-model="taskForm.comment" placeholder="请输入处理意见" />
          </el-form-item>
        </el-form>
        <template #footer>
          <span class="dialog-footer">
            <el-button @click="completeOpen = false">取 消</el-button>
            <el-button type="primary" @click="taskComplete">确 定</el-button>
          </span>
        </template>
      </el-dialog>
      <!--退回流程-->
      <el-dialog :title="returnTitle" v-model="returnOpen" width="40%" append-to-body>
        <el-form ref="taskForm" :model="taskForm" label-width="80px">
          <el-form-item label="退回节点" prop="targetKey">
            <el-radio-group v-model="taskForm.targetKey">
              <el-radio-button v-for="item in returnTaskList" :key="item.id" :label="item.id">{{ item.name }}
              </el-radio-button>
            </el-radio-group>
          </el-form-item>
          <el-form-item label="退回意见" prop="comment" :rules="[{ required: true, message: '请输入意见', trigger: 'blur' }]">
            <el-input style="width: 50%" type="textarea" v-model="taskForm.comment" placeholder="请输入意见" />
          </el-form-item>
        </el-form>
        <template #footer>
          <span class="dialog-footer">
            <el-button @click="returnOpen = false">取 消</el-button>
            <el-button type="primary" @click="taskReturn">确 定</el-button>
          </span>
        </template>
      </el-dialog>
      <!--驳回流程-->
      <el-dialog :title="rejectTitle" v-model="rejectOpen" width="40%" append-to-body>
        <el-form ref="taskForm" :model="taskForm" label-width="80px">
          <el-form-item label="驳回意见" prop="comment" :rules="[{ required: true, message: '请输入意见', trigger: 'blur' }]">
            <el-input style="width: 50%" type="textarea" v-model="taskForm.comment" placeholder="请输入意见" />
          </el-form-item>
        </el-form>
        <template #footer>
          <span class="dialog-footer">
            <el-button @click="rejectOpen = false">取 消</el-button>
            <el-button type="primary" @click="taskReject">确 定</el-button>
          </span>
        </template>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
import { flowRecord } from "@/api/flowable/finished";
import FlowUser from '@/components/Flow/User'
import FlowRole from '@/components/Flow/Role'
import { flowXmlAndNode } from "@/api/flowable/definition";
import { complete, rejectTask, returnList, returnTask, getNextFlowNode, delegate, flowTaskForm } from "@/api/flowable/todo";
import BpmnViewer from '@/components/Process/viewer';

export default {
  name: "Record",
  components: {
    BpmnViewer,
    FlowUser,
    FlowRole,
  },
  props: {},
  data() {
    return {
      eventName: "click",
      // 流程数据
      flowData: {},
      activeName: '1',
      // 遮罩层
      loading: true,
      flowRecordList: [], // 流程流转数据
      rules: {}, // 表单校验
      taskForm: {
        returnTaskShow: false, // 是否展示回退表单
        delegateTaskShow: false, // 是否展示回退表单
        defaultTaskShow: true, // 默认处理
        comment: "", // 意见内容
        procInsId: "", // 流程实例编号
        instanceId: "", // 流程实例编号
        deployId: "",  // 流程定义编号
        taskId: "",// 流程任务编号
        procDefId: "",  // 流程编号
        targetKey: "",
        variables: {},
      },
      returnTaskList: [],  // 回退列表数据
      completeTitle: null,
      completeOpen: false,
      returnTitle: null,
      returnOpen: false,
      rejectOpen: false,
      rejectTitle: null,
      checkSendUser: false, // 是否展示人员选择模块
      checkSendRole: false,// 是否展示角色选择模块
      checkType: 'single', // 选择类型
      taskName: null, // 任务节点
      startUser: null, // 发起人信息,
      multiInstanceVars: '', // 会签节点
      formJson: {}
    };
  },
  created() {
    if (this.$route.query) {
      this.taskName = this.$route.query.taskName;
      this.startUser = this.$route.query.startUser;
      this.taskForm.deployId = this.$route.query.deployId;
      this.taskForm.taskId = this.$route.query.taskId;
      this.taskForm.procInsId = this.$route.query.procInsId;
      this.taskForm.executionId = this.$route.query.executionId;
      this.taskForm.instanceId = this.$route.query.procInsId;
      // 流程任务获取变量信息
      if (this.taskForm.taskId) {
        this.getFlowTaskForm(this.taskForm.taskId);
      }
      this.getFlowRecordList(this.taskForm.procInsId, this.taskForm.deployId);
    }
  },
  methods: {
    handleClick(tab, event) {
      if (tab.index === '2') {
        flowXmlAndNode({ procInsId: this.taskForm.procInsId, deployId: this.taskForm.deployId }).then(res => {
          this.flowData = res.data;
        })
      }
    },
    setIcon(val) {
      if (val) {
        return "el-icon-check";
      } else {
        return "el-icon-time";
      }
    },
    setColor(val) {
      if (val) {
        return "#2bc418";
      } else {
        return "#b3bdbb";
      }
    },
    // 用户信息选中数据
    handleUserSelect(selection) {
      if (selection) {
        if (selection instanceof Array) {
          const selectVal = selection.map(item => item.userId.toString());
          if (this.multiInstanceVars) {
            this.taskForm.variables[this.multiInstanceVars] = selectVal;
          } else {
            this.taskForm.variables["approval"] = selectVal.join(',');
          }
        } else {
          this.taskForm.variables["approval"] = selection.userId.toString();
        }
      }
    },
    // 角色信息选中数据
    handleRoleSelect(selection, roleName) {
      if (selection) {
        if (selection instanceof Array) {
          const selectVal = selection.map(item => item.roleId.toString());
          this.taskForm.variables["approval"] = selectVal.join(',');
        } else {
          this.taskForm.variables["approval"] = selection;
        }
      }
    },
    /** 流程流转记录 */
    getFlowRecordList(procInsId, deployId) {
      const that = this
      const params = { procInsId: procInsId, deployId: deployId }
      flowRecord(params).then(res => {
        that.flowRecordList = res.data.flowList;
      }).catch(res => {
        this.goBack();
      })
    },
    /** 流程节点表单 */
    getFlowTaskForm(taskId) {
      if (taskId) {
        // 提交流程申请时填写的表单存入了流程变量中后续任务处理时需要展示
        flowTaskForm({ taskId: taskId }).then(res => {
          // 回显表单
          this.$refs.vFormRef.setFormJson(res.data.formJson);
          this.formJson = res.data.formJson;
          this.$nextTick(() => {
            // 加载表单填写的数据
            this.$refs.vFormRef.setFormData(res.data);
            // this.$nextTick(() => {
            //   // 表单禁用
            //   this.$refs.vFormRef.disableForm();
            // })
          })
        });
      }
    },

    /** 委派任务 */
    handleDelegate() {
      this.taskForm.delegateTaskShow = true;
      this.taskForm.defaultTaskShow = false;
    },
    handleAssign() {

    },
    /** 返回页面 */
    goBack() {
      // 关闭当前标签页并返回上个页面
      const obj = { path: "/task/todo", query: { t: Date.now() } };
      this.$tab.closeOpenPage(obj);
    },
    /** 驳回任务 */
    handleReject() {
      this.rejectOpen = true;
      this.rejectTitle = "驳回流程";
    },
    /** 驳回任务 */
    taskReject() {
      this.$refs["taskForm"].validate(valid => {
        if (valid) {
          rejectTask(this.taskForm).then(res => {
            this.$modal.msgSuccess(res.msg);
            this.goBack();
          });
        }
      });
    },
    /** 可退回任务列表 */
    handleReturn() {
      this.returnOpen = true;
      this.returnTitle = "退回流程";
      returnList(this.taskForm).then(res => {
        this.returnTaskList = res.data;
      })
    },
    /** 提交退回任务 */
    taskReturn() {
      this.$refs["taskForm"].validate(valid => {
        if (valid) {
          returnTask(this.taskForm).then(res => {
            this.$modal.msgSuccess(res.msg);
            this.goBack()
          });
        }
      });
    },
    /** 取消回退任务按钮 */
    cancelTask() {
      this.taskForm.returnTaskShow = false;
      this.taskForm.defaultTaskShow = true;
      this.returnTaskList = [];
    },
    /** 委派任务 */
    submitDeleteTask() {
      this.$refs["taskForm"].validate(valid => {
        if (valid) {
          delegate(this.taskForm).then(response => {
            this.$modal.msgSuccess(response.msg);
            this.goBack();
          });
        }
      });
    },
    /** 取消回退任务按钮 */
    cancelDelegateTask() {
      this.taskForm.delegateTaskShow = false;
      this.taskForm.defaultTaskShow = true;
      this.returnTaskList = [];
    },
    /** 加载审批任务弹框 */
    handleComplete() {
      this.completeOpen = true;
      this.completeTitle = "流程审批";
      this.submitForm();
    },
    /** 用户审批任务 */
    taskComplete() {
      if (!this.taskForm.variables && this.checkSendUser) {
        this.$modal.msgError("请选择流程接收人员!");
        return;
      }
      if (!this.taskForm.variables && this.checkSendRole) {
        this.$modal.msgError("请选择流程接收角色组!");
        return;
      }
      if (!this.taskForm.comment) {
        this.$modal.msgError("请输入审批意见!");
        return;
      }
      if (this.taskForm) {
        complete(this.taskForm).then(response => {
          this.$modal.msgSuccess(response.msg);
          this.goBack();
        });
      } else {
        complete(this.taskForm).then(response => {
          this.$modal.msgSuccess(response.msg);
          this.goBack();
        });
      }
    },
    /** 申请流程表单数据提交 */
    submitForm() {
      // 根据当前任务或者流程设计配置的下一步节点 todo 暂时未涉及到考虑网关、表达式和多节点情况
      const params = { taskId: this.taskForm.taskId }
      getNextFlowNode(params).then(res => {
        this.$refs.vFormRef.getFormData().then(formData => {
          Object.assign(this.taskForm.variables, formData);
          this.taskForm.variables.formJson = this.formJson;
          console.log(this.taskForm, "流程审批提交表单数据1")
        }).catch(error => {
          // this.$modal.msgError(error)
        })
        const data = res.data;
        if (data) {
          if (data.dataType === 'dynamic') {
            if (data.type === 'assignee') { // 指定人员
              this.checkSendUser = true;
              this.checkType = "single";
            } else if (data.type === 'candidateUsers') {  // 候选人员(多个)
              this.checkSendUser = true;
              this.checkType = "multiple";
            } else if (data.type === 'candidateGroups') { // 指定组(所属角色接收任务)
              this.checkSendRole = true;
            } else { // 会签
              // 流程设计指定的 elementVariable 作为会签人员列表
              this.multiInstanceVars = data.vars;
              this.checkSendUser = true;
              this.checkType = "multiple";
            }
          }
        }
      })
    },
    // 动态绑定操作按钮的点击事件
    handleButtonClick(method) {
      this[method]();
    }
  },
};
</script>
<style lang="scss" scoped>
.test-form {
  margin: 15px auto;
  width: 800px;
  padding: 15px;
}

.clearfix:before,
.clearfix:after {
  display: table;
  content: "";
}

.clearfix:after {
  clear: both
}

.box-card {
  width: 100%;
  margin-bottom: 20px;
}

.el-tag+.el-tag {
  margin-left: 10px;
}

.my-label {
  background: #E1F3D8;
}
</style>
